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          <div>
            <h2 class="title" style="clear: both"><a id="changelog_4_8"></a>Berkeley DB 4.8.30 Change Log</h2>
          </div>
        </div>
      </div>
      <div class="toc">
        <dl>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655543">
Changes between 4.8.26 and 4.8.30:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655588">
Known bugs in 4.8 </a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655727">
Changes between 4.8.24 and 4.8.26:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655844">
Changes between 4.8.21 and 4.8.24:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655898">
Changes between 4.7 and 4.8.21:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655904">
Database or Log File On-Disk Format Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655609">
New Features:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655816">
Database Environment Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655970">
Concurrent Data Store Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1655916">
General Access Method Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656015">
Btree Access Method Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656091">
Hash Access Method Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656163">
Queue Access Method Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656078">
Recno Access Method Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656213">
C-specific API Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656176">
C++-specific API Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656268">
Java-specific API Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656290">

 Direct Persistence Layer (DPL), Bindings and Collections API:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656161">

 Tcl-specific API Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656376">
RPC-specific Client/Server Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656388">
Replication Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656470">
XA Resource Manager Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656534">
Locking Subsystem Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656721">
Logging Subsystem Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656706">
Memory Pool Subsystem Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656768">
Mutex Subsystem Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656859">
Test Suite Changes</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656877">
Transaction Subsystem Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1656959">
Utility Changes:</a>
            </span>
          </dt>
          <dt>
            <span class="sect2">
              <a href="changelog_4_8.html#id1657000">
Configuration, Documentation, Sample Application, Portability and 
Build Changes:</a>
            </span>
          </dt>
        </dl>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655543"></a>
Changes between 4.8.26 and 4.8.30:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Limit the size of a log record generated by freeing pages from a 
database so it fits in the log file size.  [#17313]   
</p>
            </li>
            <li>
              <p>
Fixed a bug that could cause a file to be removed if it was both the
 source and target of two renames within a transaction. [#18069]  
 
</p>
            </li>
            <li>
              <p>
Modified how we go about selecting a usable buffer in the cache.  
Place more emphasis on single version and obsolete buffers.  [#18114] 
  
</p>
            </li>
            <li>
              <p>
Fixed a bug that could lead to btree structure corruption if the 
db-&gt;compact method runs out of locks. [#18361]   
</p>
            </li>
            <li>
              <p>
Allow any file to be truncated even if its not a db file. [#18373] 
  
</p>
            </li>
            <li>
              <p>
Avoid a segmentation fault error if the lock manager runs out of 
locks. [#18428]   
</p>
            </li>
            <li>
              <p>
Add dbreg close records for open but missing databases during 
recovery. [#18459]   
</p>
            </li>
            <li>
              <p>
Fixed a bug which could occur when using bulk transfer with 
Replication Manager.  Replication Manager may send messages even though 
its connections have already been closed, leading in rare circumstances 
to spurious EBADF error reports, or possibly even arbitrary memory 
corruption. [#18469]   
</p>
            </li>
            <li>
              <p>
Fixed a bug in C# API where db.HasMultiple was throwing an incorrect
 exception. [#18483]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where populating a SecondaryDatabase on open could lead 
to an OutOfMemoryException.. [#18529]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where entries in the db register file did not get 
cleared out properly after recovery takes place. This will permit a 
process to perform a dbenv-&gt;close and then reconnect to environment 
without needing to stop the process. [#18535]   
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655588"></a>
Known bugs in 4.8 </h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Sharing logs across mixed-endian systems does not work.[#18032] 
  
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655727"></a>
Changes between 4.8.24 and 4.8.26:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug where the truncate log record could be too large when 
freeing too many pages during a compact. [#17313]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where the deadlock detector might not run properly. 
[#17555]   
</p>
            </li>
            <li>
              <p>
Fixed three bugs related to properly detecting thread local storage 
for DbStl. [#17609]  [#18001] [#18038]   
</p>
            </li>
            <li>
              <p>
Fixed a bug that prevented some of our example code from running 
correctly in a Windows environment. [#17627]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where a "unable to allocate space from buffer cache" 
error was improperly generated. [#17630]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where DB-&gt;exists() did not accept the DB_AUTO_COMMIT 
flag. [#17687]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where DB_TXN_SNAPSHOT was not getting ignored when 
DB_MULTIVERSION not set. [#17706]   
</p>
            </li>
            <li>
              <p>
Fixed a bug that prevented callback based partitioning through the 
Java API. [#17735]   
</p>
            </li>
            <li>
              <p>
Fixed a replication bug where log files were not automatically 
removed from the client side. [#17899]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where code generated from db_sql stored the key in both 
the data and key DBTs. [#17925]   
</p>
            </li>
            <li>
              <p>
Fixed a bug that prevented a sequence from closing properly after 
the EntityStore closed. [#17951]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where gets fail if the DB_GET_BOTH_FLAG is specified in a
 hash, sorted duplicates database.[#17997]   
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655844"></a>
Changes between 4.8.21 and 4.8.24:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug in the C# API where applications in a 64-bit environment
 could hang. [#17461]   
</p>
            </li>
            <li>
              <p>
Fixed a bug in MVCC where an exclusive latch was not removed when we
 couldn't obtain a buffer. [#17479]   
</p>
            </li>
            <li>
              <p>
Fixed a bug where a lock wasn't removed on a non-transactional 
locker. [#17509]   
</p>
            </li>
            <li>
              <p>
Fixed a bug which could trigger an assertion when performing a 
B-tree page split and running out of log space or with MVCC enabled. 
[#17531]   
</p>
            </li>
            <li>
              <p>
Fixed a bug in the repquote example that could cause the application
 to crash. [#17547]   
</p>
            </li>
            <li>
              <p>
Fixed a couple of bugs when using the GCC 4.4 compiler to build the 
examples and the dbstl API. [#17504] [#17476]   
</p>
            </li>
            <li>
              <p>
Fixed an incorrect representation of log system configuration info. 
[#17532]   
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655898"></a>
Changes between 4.7 and 4.8.21:</h3>
            </div>
          </div>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655904"></a>
Database or Log File On-Disk Format Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
The log file format changed in 4.8. 
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655609"></a>
New Features:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Improved scalability and throughput when using BTree databases 
especially when running with multiple threads that equal or exceed the 
number of available CPUs. 

</p>
            </li>
            <li>
              <p>
Berkeley DB has added support for C#. In addition to the new 
C# api, C# specific tests and sample applications were also added. 
[#16137]
</p>
            </li>
            <li>
              <p>
Berkeley DB has added an STL API, which is compatible with and very 
similar to  C++ Standard Template Library (STL). Tests and 
sample applications and documentation were also added. [#16217]

</p>
            </li>
            <li>
              <p>
Berkeley DB has added database partitioning. BTree or Hash databases
 may now be partitioned across multiple directories. Partitioned 
databases can be used to increase concurrency and to improve performance
 by spreading access across disk subsystems. [#15862]
</p>
            </li>
            <li>
              <p>
Berkeley DB now supports bulk insertion and deletion of data. 
Similar to the bulk get interface, the bulk put and bulk delete allow 
the developer to populate a buffer of key-value pairs and then pass it 
to the BDB library with a single API call. 
</p>
            </li>
            <li>
              <p>
Berkeley DB now supports compression when using BTree. 

</p>
            </li>
            <li>
              <p>
Berkeley DB introduces a new utility named db_sql which replaces 
db_codegen. Similar to db_codegen, db_sql accepts an input file with DDL
 statements and generates a Berkeley DB application using the C API that
 creates and performs CRUD operations on the defined tables. The 
developer can then use that code as a basis for further application 
development. 
</p>
            </li>
            <li>
              <p>
The Replication Manager now supports shared access to the Master 
database environment from multiple processes. In earlier versions,
 multiple process support on the Master required use of the Base 
Replication API. [#15982]

</p>
            </li>
            <li>
              <p>
Foreign Key Support has been added to Berkeley DB.
</p>
            </li>
            <li>
              <p>
Several enhancements were made to DB_REGISTER &amp; 
DB_ENV-&gt;failchk(). 
</p>
            </li>
            <li>
              <p>
Berkeley now supports 100% in-memory replication. 

</p>
            </li>
            <li>
              <p>
Berkeley DB now has the ability to compare two cursors for equality.
 [#16811]


</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655816"></a>
Database Environment Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug that could cause an allocation error while trying to
 allocate thread tracking information for the DB_ENV-&gt;failcheck 
system.
[#16300]
</p>
            </li>
            <li>
              <p>
Fixed a bug that could cause a trap if an environment open failed 
and failchk thread tracking was enabled.[#16770]
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655970"></a>
Concurrent Data Store Changes:</h3>
            </div>
          </div>
        </div>
        <p>
None.
</p>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1655916"></a>
General Access Method Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug where doing an insert with secondary indices and the
 NOOVERWRITE flag could corrupt the secondary index. [#15912]
</p>
            </li>
            <li>
              <p>
Fixed a possible file handle leak that occurred while aborting the 
create of a database whose metadata page was not initialized.
[#16359]
</p>
            </li>
            <li>
              <p>
Fixed a bug so that we now realloc the filename buffer only if we 
need it to grow. [#16385]
[#16219]

</p>
            </li>
            <li>
              <p>
Fixed a race freeing a transaction object when using MVCC. [#16381]


</p>
            </li>
            <li>
              <p>
Added missing get methods for the DB and DB_ENV classes where there 
already was a corresponding set method. [#16505] 

</p>
            </li>
            <li>
              <p>
 Fixed a bug to now ensure that DB_STAT_SUBSYSTEM is distinct from 
other stat flags. [#16798]
</p>
            </li>
            <li>
              <p>
Fixed a bug related to updating multiple secondary keys (using 
DB_MULTIPLE). [#16885]
 
</p>
            </li>
            <li>
              <p>
Fixed a bug so that verify (db-&gt;verify, db_verify) will now 
report when it cannot read a page rather than just saying the database 
is bad. [#16916]
</p>
            </li>
            <li>
              <p>
Fixed a bug that could cause memory corruption if a transaction
allocating a page aborted while DB-&gt;compact was running on that
database. [#16862]
</p>
            </li>
            <li>
              <p>
Fixed a bug where logging was occurring during remove of an 
in-memory database when
the DB_TXN_NOT_DURABLE flag was set. [#16571]
</p>
            </li>
            <li>
              <p>
Fixed a bug to remove a race condition during database/file create. 
[#17020] 
</p>
            </li>
            <li>
              <p>
Fixed a bug where a call to DB-&gt;verify and specifying DB_SALVAGE 
could leak memory when the call returned. [#17161] 
</p>
            </li>
            <li>
              <p>
Fixed a bug to avoid accessing freed memory during puts on primaries
 with custom comparators. [#17189] 
</p>
            </li>
            <li>
              <p>
Fixed a bug that could cause old versions of pages to be written 
over new versions if an existing database is opened with the DB_TRUNCATE
 flag. [#17191] 
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656015"></a>
Btree Access Method Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>


Fixed a bug which could cause DB-&gt;compact to fail with DB_NOTFOUND or
 DB_PAGE_NOTFOUND if the height of the tree was reduced by another
 thread while compact was active. The bug could also cause a page 
split to trigger splitting of internal nodes which did not need to be 
split.
 [#16192]
</p>
            </li>
            <li>
              <p>
Fixed a bug that caused Db-&gt;compact to loop if run on an empty 
RECNO database when there were pages in the free list. [#16778]
 
</p>
            </li>
            <li>
              <p>
Added a new flag, DB_OVERWRITE_DUP, to DB-&gt;put and DBC-&gt;put.
This flag is equivalent to DB_KEYLAST in almost all cases: the exception
 is
that with sorted duplicates, if a matching key/data pair exists, we 
overwrite
it rather than returning DB_KEYEXIST. [#16803]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656091"></a>
Hash Access Method Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug to now force a group allocation that rolls forward 
to reinit all the pages.

Otherwise a previous aborted allocation may change the header.
[#15414] 
</p>
            </li>
            <li>
              <p>
Fixed a bug to now return the expected buffer size on a 
DB_BUFFER_SMALL condition. [#16881]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656163"></a>
Queue Access Method Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
 Fixed a bug that would cause the LSN reset functionality to not
 process queue extents.
[#16213]
</p>
            </li>
            <li>
              <p>
Fixed a bug that prevented a partial put on a queue database with 
secondaries 
configured. [#16460]

</p>
            </li>
            <li>
              <p>
Fixed a bug to now prevent an unpinned page to be returned if a 
delete from a HASH database deadlocked.
 [#16371]
</p>
            </li>
            <li>
              <p>
Fixed a bug that could cause a queue extent to be recreated if an 
application deleted a record that was already deleted in that extent. 
[#17004]
</p>
            </li>
            <li>
              <p>
Added the DB_CONSUME flag to DB-&gt;del and DBC-&gt;del to force 
adjustment of the head of the queue. [#17004]
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656078"></a>
Recno Access Method Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
 Fixed a bug which could cause DB-&gt;compact of a RECNO 
database to loop if the number of pages on the free list was reduced by 
another thread while compact was active. [#16199]
</p>
            </li>
            <li>
              <p>
Fixed a bug that occurs when deleting from a Recno database and 
using DB_READ_UNCOMMITTED where we could try to downgrade a lock 
twice. [#16347]
</p>
            </li>
            <li>
              <p>
Fixed a bug to now disallow passing DB_DUP and DB_RECNUM together to
 __db_set_flags.
[#16585]
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656213"></a>
C-specific API Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Add get functions for each set functions of DB and DB_ENV structures
 which didn't have one.[#16505]
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656176"></a>
C++-specific API Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
The get and set_lk_partitions methods are now available. 

</p>
            </li>
            <li>
              <p>

Add get functions for each set functions of Db and DbEnv classes which 
didn't have one.[#16505]

</p>
            </li>
            <li>
              <p>
Fixed a memory leak when using nested transactions.[#16956] 
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656268"></a>
Java-specific API Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
 Fixed a bug where the replication finer-grained verbose
flags were not available in the Java API. [#15419]
</p>
            </li>
            <li>
              <p>
Fixed a bug in the BTree prefix compression API when called from the
 Java

API. DBTs were not properly initialized. [#16417]

</p>
            </li>
            <li>
              <p>
Fixed a bug so that LogCursor will work correctly from the Java API.
[#16827]

</p>
            </li>
            <li>
              <p>
Fixed a bug so that position(), limit() and capacity() of 
ByteBuffers are obeyed by DatabaseEntry objects. [#16982]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656290"></a>

 Direct Persistence Layer (DPL), Bindings and Collections API:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
The StoredMap class now implements the standard 
java.util.concurrent.ConcurrentMap interface. [#15382]
</p>
            </li>
            <li>
              <p>
Report a meaningful IllegalArgumentException when @Persistent is 
incorrectly declared on an enum class. Before, the confusing message 
Persistent class has non-persistent superclass: java.lang.Enum was 
reported. [#15623]
</p>
            </li>
            <li>
              <p>
Report a meaningful IllegalArgumentException when @Persistent is 
incorrectly declared on an interface. Before, a NullPointerException was
 reported. [#15841]
</p>
            </li>
            <li>
              <p>
Several validation checks have been added or corrected having to do 
with entity subclasses, which are @Persistent classes that extend an 
@Entity class. [#16077]
</p>
            </li>
            <li>
              <p>
Optimized marshaling for large numbers of embedded objects improving
 performance. [#16198]
</p>
            </li>
            <li>
              <p>
The StoredMap class now implements the Java 1.5 ConcurrentMap 
interface. [#16218]
</p>
            </li>
            <li>
              <p>
Fix a DPL bug that caused exceptions when using a class Converter 
for an instance containing non-simple fields. [#16233]
</p>
            </li>
            <li>
              <p>
Add EntityCursor.setCacheMode and getCacheMode. See the 
com.sleepycat.je.CacheMode class for more information. [#16239]
</p>
            </li>
            <li>
              <p>
Fix a bug that prevents evolution of @SecondaryKey information in an
 entity subclass (a class that extends an @Entity class). [#16253]
</p>
            </li>
            <li>
              <p>
Report a meaningful IllegalArgumentException when @Persistent or 
@Entity is incorrectly used on an inner class (a non-static nested 
class). Before, the confusing message No default constructor was 
reported. [#16279]
</p>
            </li>
            <li>
              <p>
Improved the reliability of Entity subclasses that define secondary 
keys by requiring that they be registered prior to storing an instance 
of the class. [#16399] 
</p>
            </li>
            <li>
              <p>
Fix a bug that under certain circumstances causes 
"IllegalArgumentException: Not a key class" when calling 
EntityStore.getSubclassIndex, EntityStore.getPrimaryConfig, 
EntityStore.getSecondaryConfig, or PrimaryIndex.put, and a composite key
 class is used. [#16407]
</p>
            </li>
            <li>
              <p>
Fixed a bug so that one can now compile DPL in the Java API on 
Windows. 
[#16570]
</p>
            </li>
            <li>
              <p>
The com.sleepycat.collections.TransactionRunner.handleException 
method has been added to allow overriding the default transaction retry 
policy. See the javadoc for this method for more information. [#16574]

</p>
            </li>
            <li>
              <p>
Fix a bug that causes an assertion to fire or a NullPointerException
 (when assertions are disabled) from the EntityStore constructor. The 
problem occurs only when the previously created EntityStore contains an 
entity with a secondary key definition in which the key name has been 
overridden and is different than the field name. [#16819]
</p>
            </li>
            <li>
              <p>
Key cursors have been optimized to significantly reduce I/O when the
 READ_UNCOMMITTED isolation mode is used. See EntityIndex.keys for more 
information. [#16859]
</p>
            </li>
            <li>
              <p>
Report a meaningful IllegalArgumentException when NULLIFY is used 
with a @SecondaryKey and the field is a primitive type. Before, the 
confusing message Key field object may not be null was reported. 
[#17011]
</p>
            </li>
            <li>
              <p>
Enum fields may now be used as DPL keys, including primary keys, 
secondary keys, and fields of composite key classes. Comparators are 
supported for composite key classes containing enum fields. [#17140]
</p>
            </li>
            <li>
              <p>
Fix a bug that prevented the use of custom key comparisons 
(composite key classes that implement Comparable) for secondary keys 
defined as ONE_TO_MANY or MANY_TO_MANY.[#17207] 
</p>
            </li>
            <li>
              <p>
The db.jar file now contains a Premain class which enables bytecode 
enhancement using the JVM instrumentation commands.  The built-in proxy 
classes are also now enhanced in the db.jar file, which enables off-line
 bytecode enhancement.  For more information on DPL bytecode enhancement
 and how to use both instrumentation and off-line enhancement, please 
see the com.sleepycat.persist.model.ClassEnhancer javadoc. [#17233]


</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656161"></a>

 Tcl-specific API Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
The mutex API is now available when using Tcl. [#16342]


</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656376"></a>
RPC-specific Client/Server Changes:</h3>
            </div>
          </div>
        </div>
        <div class="itemizedlist">
          <ul type="disc">
            <li>
              <p>


RPC support has been removed from Berkeley DB. [#16785]
</p>
            </li>
          </ul>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656388"></a>
Replication Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Improved testing of initial conditions for rep and repmgr APIs 
and added heartbeat timeouts to rep_get_timeout.[#14977]
</p>
            </li>
            <li>
              <p>
Added DB_REP_CONF_INMEM replication configuration flag to store 
replication information
exclusively in-memory without creating any files on-disk. [#15257]

</p>
            </li>
            <li>
              <p>
Added repmgr support for multi-process shared env [#15982]

</p>
            </li>
            <li>
              <p>
Fixed a bug where opening a cursor from a database handle failed to 
check whether the database handle was still fresh. If the database 
handle had been invalidated by a replication client synchronizing with a
 new master, it could point to invalid information. [#15990]

</p>
            </li>
            <li>
              <p>
Fixed a bug so that if LOG_REQ gets an archived LSN, replication 
sends VERIFY_FAIL. [#16004]

</p>
            </li>
            <li>
              <p>
Added timestamp and process/thread id to replication verbose 
messages. [#16098]
</p>
            </li>
            <li>
              <p>
Fixed a bug where, in very rare circumstances, two repmgr sites 
could connect to each other at the exact same time, the connection 
attempts "collide" and fail, and the same collision repeats in time 
synchronization indefinitely. [#16114]

</p>
            </li>
            <li>
              <p>
 Fixed a bug where a missing database file (FILE_FAIL error 
condition) can interrupt a 
client synchronization without restarting it. [#16130]


</p>
            </li>
            <li>
              <p>
Fixed a bug by adding REP_F_INREPSTART flag to prevent racing 
threads in rep_start. [#16247]


</p>
            </li>
            <li>
              <p>
Fixed a bug to not return HOLDELECTION if we are already in the 
middle of an election. Updated the egen so the election thread 
will notice. [#16270]
</p>
            </li>
            <li>
              <p>
Fixed a bug in buffer space computation, which could have led to 
memory corruption in rare circumstances, when using bulk transfer. 
[#16357]


</p>
            </li>
            <li>
              <p>
Fixed a bug that prevented replication clients from opening a 
sequence. The sequence is opened for read operations only. 
[#16406]
</p>
            </li>
            <li>
              <p>
Fixed a bug by removing an assertion about priority in elections. 
It is not correct
because it could have changed by then. Remove unused recover_gen
field. [#16412]

</p>
            </li>
            <li>
              <p>
Fixed a bug to now ignore a message from client if it is an LSN not 
recognized in
a LOG_REQ. [#16444]

</p>
            </li>
            <li>
              <p>
Fixed a bug so that on POSIX systems, repmgr no longer restores 
default
SIGPIPE action upon env close, if it was necessary to change it during
start-up. This allows remaining repmgr environments within the 
same
process, if any, to continue operating after one of them is closed. 
[#16454]


</p>
            </li>
            <li>
              <p>
 After a replication client restarts with recovery, any named 
in-memory databases are now re-materialized from the rest of the 
replication group upon synchronization with the master. [#16495]

</p>
            </li>
            <li>
              <p>
Fixed a bug by adding missing rep_get_config flags. [#16527]

</p>
            </li>
            <li>
              <p>
Instead of sleeping if the bulk buffer is in transmission, return so
 that we can send as a singleton. [#16537]

</p>
            </li>
            <li>
              <p>
Fixed a bug by changing __env_refresh to not hit assert on -private 
-rep env with an in-memory database. [#16546]


</p>
            </li>
            <li>
              <p>
Fixed a bug in the Windows implementation of repmgr where a large 
number of commit threads concurrently awaiting
acknowledgments could result in memory corruption, and leaking
Win32 Event Objects.
[#16548]
</p>
            </li>
            <li>
              <p>
Fixed a bug by changing repmgr to count a dropped connection when 
noticing a lacking
heartbeat; fixed hearbeat test to check for election, rather than 
connection
drop count, and more reasonable time limit; fixed test to poll until
desired result, rather than always sleeping max possible
time. [#16550]

</p>
            </li>
            <li>
              <p>
Fixed "master changes" stat to count when local site becomes master 
too. [#16562]

</p>
            </li>
            <li>
              <p>
Fixed a bug where a c2c client would send UPDATE_REQ to another 
client [#16592]

</p>
            </li>
            <li>
              <p>
Removed code to proactively expire leases when we don't get 
acks.
Leases maintain their own LSNs to know. [#16494]
</p>
            </li>
            <li>
              <p>
Fixed a bug where a client may not sync pages during internal init. 
[#16671]

</p>
            </li>
            <li>
              <p>
Fixed a bug where a client that received and skipped a log record 
from the master during an election, then won the election, could then 
try to request a copy of the skipped log record. The result was an
 attempt to send a request to the local site, which is invalid: this 
could confuse a replication Base API application, or cause the 
Replication Manager to crash. [#16700]
</p>
            </li>
            <li>
              <p>

Fixed a bug which could have caused data loss or corruption (at the 
client only) if a replication client rolled back existing transactions 
in order to synchronize with a new master, and then crashed/recovered 
before a subsequent checkpoint operation had been replicated from the 
master. [#16732]

</p>
            </li>
            <li>
              <p>
 Fixed a bug so that replication now retries on DB_LOCK_NOTGRANTED. 
[#16741]
</p>
            </li>
            <li>
              <p>
Fixed a potential deadlock in rep_verify_fail. [#16779]
</p>
            </li>
            <li>
              <p>
 Fixed a bug so that an application will no longer segv if nsites 
given was smaller than number of sites that actually exists. [#16825]
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656470"></a>
XA Resource Manager Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
The XA Resource Manager has been removed from Berkeley DB. 
[#6459]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656534"></a>
Locking Subsystem Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
 Fixed a bug to prevent unlocking a mutex twice if we ran out of
 transactional locks.
[#16285]
</p>
            </li>
            <li>
              <p>
 Fixed a bug to prevent a segmentation trap in __lock_open if 
there were an error during the opening of an environment.
[#16307]
</p>
            </li>
            <li>
              <p>
 Fixed a bug to now avoid a deadlock if user defined locks are used 
only one lock partition is defined.[#16415]
</p>
            </li>
            <li>
              <p>
Fixed concurrency problems in __dd_build, __dd_abort by adding 
LOCK_SYSTEM_LOCK() calls to
__dd_build and __dd_abort.
[16489]
</p>
            </li>
            <li>
              <p>
Fixed a bug that could cause a panic if a transaction which
updated a database that was supporting
READ_UNCOMMITED readers aborted and it hit a race
with a thread running the deadlock detector. [#16490]
</p>
            </li>
            <li>
              <p>
Fixed a race condition in deadlock detection that could overwrite 
heap. [#16541] 

</p>
            </li>
            <li>
              <p>
Fixed a bug so that DB_STAT_CLEAR now restores the value of 
st_partitions. [#16701]


</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656721"></a>
Logging Subsystem Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug so that the header checksum is only ignored when the
 log is from a previous version [#16281] 
</p>
            </li>
            <li>
              <p>
Fixed a bug by removing a possible race condition with 
logc_get(DB_FIRST) and log archiving. [#16387]

</p>
            </li>
            <li>
              <p>
Fixed a bug that could cause a recovery failure of a create of a 
database that was aborted. [#16824]
 
</p>
            </li>
            <li>
              <p>
An in-memory database creation has an intermediate phase where we 
have a semi-open DBP. If
we crash in that state,  then recovery was failing because it tried to 
use a partically open
database handle.  This fix checks for that case, and avoids trying to 
undo page writes for
databases in that interim step. [#17203]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656706"></a>
Memory Pool Subsystem Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug that occurred after all open handles on a file are 
closed. Needed to clear the TXN_NOT_DURABLE
flag (if set) and mark the file as DURABLE_UNKNOWN in the memory pool. 
[#16091]

</p>
            </li>
            <li>
              <p>
Fixed a possible race condition between dirtying and freeing a 
buffer that could result in a panic or corruption.
[#16530]
</p>
            </li>
            <li>
              <p>
 Fixed a memory leak where allocated space for temporary file names 
are not released. [#16956]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656768"></a>
Mutex Subsystem Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug when using mutexes for SMP MIPS/Linux systems. 
[#15914]

</p>
            </li>
            <li>
              <p>
POSIX mutexes are now the default on Solaris. [#16066]

</p>
            </li>
            <li>
              <p>
Fixed a bug in mutex allocation with multiple cache regions. 
[#16178]
</p>
            </li>
            <li>
              <p>
Fixed MIPS/Linux mutexes in 4.7. [#16209]

</p>
            </li>
            <li>
              <p>
Fixed a bug that would cause a mutex to be unlocked a second time if
 we ran out of space while tracking pinned pages.
[#16228]
</p>
            </li>
            <li>
              <p>
Fixed a bug Sparc/GCC when using test-and-set mutexes. They 
are now aligned on an 8-byte boundary. [#16243]

</p>
            </li>
            <li>
              <p>
 Fixed a bug to now prevent a thread calling DB_ENV-&gt;failcheck
to hang on a mutex held by a dead thread.

[#16446]
</p>
            </li>
            <li>
              <p>
Fixed a bug so that __db_pthread_mutex_unlock() now handles the 
failchk case
of finding a busy mutex which was owned by a now-dead process. [#16557] 
</p>
            </li>
            <li>
              <p>

Removed support for the mutex implementation based on the "fcntl" system
  
call.  Anyone configuring Berkeley DB to use this type of mutex in an  
earlier release will need to either switch to a different mutex type  
or contact Oracle for support. [#17470]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656859"></a>
Test Suite Changes</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug when using failchk(), where a mutex was not 
released. [#15982]

</p>
            </li>
            <li>
              <p>
Added a set of basic repmgr tests to run_std and run_all. [#16092]
</p>
            </li>
            <li>
              <p>
Added control wrapper for db_reptest to test suite. [#16161] 

</p>
            </li>
            <li>
              <p>
Fixed a bug to now skip tests if db_reptest is not configured. 
[#16161]
</p>
            </li>
            <li>
              <p>
Changed name of run_db_in_mem to run_inmem_db, and run_inmem to
run_inmem_log and made the arg orders consistent. [#16358]

</p>
            </li>
            <li>
              <p>
Fixed a bug to now clean up stray handles when rep_verify doesn't 
work. [#16390]

</p>
            </li>
            <li>
              <p>
Fixed a bug to avoid db_reptest passing the wrong flag to 
repmgr_start when there is already a master. [#16475] 

</p>
            </li>
            <li>
              <p>
Added new tests for abbreviated internal init. Fixed test not to 
expect in-memory database to survive recovery. [#16495]


</p>
            </li>
            <li>
              <p>
Fix a bug, to add page size for txn014 if the default page size is 
too small.
Move files instead of renaming directory for env015 on QNX. [#16627]

</p>
            </li>
            <li>
              <p>
Added new rep088 test for log truncation integrity. [#16732]
</p>
            </li>
            <li>
              <p>
Fixed a bug by adding a checkpoint in rep061 to make sure we have 
messages to process. Otherwise we could hang with client stuck in 
internal init, and no
incoming messages to trigger rerequest.
[#16781]

</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656877"></a>
Transaction Subsystem Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug to no longer generate an error if DB_ENV-&gt;set_flags
(DB_TXN_NOSYNC) was called after the environment was opened. [#16492]
</p>
            </li>
            <li>
              <p>
Fixed a bug to remove a potential hang condition in replication 
os_yield loops 
when DB_REGISTER used with replication by adding PANIC_CHECKS.
[#16502]
</p>
            </li>
            <li>
              <p>
Fix a bug to now release mutex obtained before special condition 
returns in __db_cursor_int and __txn_record_fname. [#16665]
</p>
            </li>
            <li>
              <p>
Fixed a leak in the transaction region when a snapshot update 
transaction accesses more than 4 databases.
[#16734]
</p>
            </li>
            <li>
              <p>
Enabled setting of set_thread_count via the DB_CONFIG file. [#16878]
</p>
            </li>
            <li>
              <p>
Fixed a mutex leak in some corner cases. [#16665] 
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1656959"></a>
Utility Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
The db_stat utility with the -RA flags will now print a list of 
known remote replication flags when using repmgr. [#15484]

</p>
            </li>
            <li>
              <p>
Restructured DB salvage to walk known leaf pages prior to looping 
over all db pages. [#16219]


</p>
            </li>
            <li>
              <p>
Fixed a problem with upgrades to 4.7 on big endian machines. 
[#16411] 

</p>
            </li>
            <li>
              <p>
Fixed a bug so that now db_load consistently returns &gt;1 on 
failure. [#16765]

</p>
            </li>
            <li>
              <p>
The db_dump utility now accepts a "-m" flag to dump information
 from a named in-memory database. [#16896]

</p>
            </li>
            <li>
              <p>
Fixed a bug that would cause db_hotbackup to fail if a database file
 was removed while it was running. [#17234]
</p>
            </li>
          </ol>
        </div>
      </div>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="id1657000"></a>
Configuration, Documentation, Sample Application, Portability and 
Build Changes:</h3>
            </div>
          </div>
        </div>
        <div class="orderedlist">
          <ol type="1">
            <li>
              <p>
Fixed a bug to now use the correct Perl include path. [#16058]
</p>
            </li>
            <li>
              <p>
Updated the version of the Microsoft runtime libraries shipped. 
[#16058]
</p>
            </li>
            <li>
              <p>
Upgraded the Visual Studio build files to be based on Visual Studio 8
 (2005+).
The build is now simplified. Users can still upgrade the 
Visual Studio 6.0 project files, if they want to

use Visual Studio .NET (7.1)
[#16108]
</p>
            </li>
            <li>
              <p>

Expanded the ex_rep example with checkpoint and log archive threads, 
deadlock detection, new options for acknowledgment policy and bulk 
transfer, and use of additional replication features and events. 
[#16109]

</p>
            </li>
            <li>
              <p>
Fixed a bug so that optimizations on AIX are re-enabled, avoiding 
incorrect code generation. [#16141]

</p>
            </li>
            <li>
              <p>
Removed a few compiler warnings and three type redefinitons when 
using vxworks and the GNU compiler. [#16341]

</p>
            </li>
            <li>
              <p>
Fixed a bug on Sparc v9 so that MUTEX_MEMBAR() now uses 
membar_enter() to get a #storeload barrier rather than just stbar's 
#storestor. [#16468]
 
</p>
            </li>
            <li>
              <p>
Berkeley DB no longer supports Win9X and Windows Me (Millenium 
edition).
</p>
            </li>
            <li>
              <p>
Fixed lock_get and lock_vec examples from the Java (and C#) API. 
Updated the Java lock
example. [#16506]
</p>
            </li>
            <li>
              <p>
Fixed a bug to correctly handle the TPC-B history record on 
64-bit systems. [#16709]
</p>
            </li>
            <li>
              <p>
Add STL API to Linux build. Can be enabled via the --enable-stl 
flag. [#16786]

</p>
            </li>
            <li>
              <p>
Add STL API to Windows build, by building the db_stl project in the 
solution. There are also stl's test and examples projects in this 
solution. [#16786]

</p>
            </li>
            <li>
              <p>

Add support to build dll projects for WinCE, in order to enable users to
 build DB into a dll in addition to a static library.[#16625]

</p>
            </li>
            <li>
              <p>
Fixed a weakness where several malloc/realloc return values are not 
checked before use.[#16664] 
</p>
            </li>
            <li>
              <p>
Enabled DB-&gt;compact for WinCE.[#15897] 
</p>
            </li>
            <li>
              <p>
HP-UX 10 is no longer supported. 
</p>
            </li>
          </ol>
        </div>
      </div>
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